Home / 19,774.50-27,288.60-11,278.01

Finding the Fourth Proportional to 19,774.50, 27,288.60 and 11,278.01

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Solution

The fourth proportional to 19,774.50, 27,288.60 and 11,278.01 is: 15,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.50 : 27,288.60 = 11,278.01 : x
  2. Step 2: Convert to fraction form
    19,774.50/27,288.60 = 11,278.01/x
  3. Step 3: Cross multiply
    19,774.50x = 27,288.60 × 11,278.01
  4. Step 4: Simplify right side
    19,774.50x = 307,761,103.69
  5. Step 5: Solve for x
    x = 307,761,103.69/19,774.50
  6. Step 6: Final answer
    x = 15,563.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.